Today I want to talk about black hole…. It names itself show how much effects it can cause…. Black hole is One of the most awe inspiring phenomenon in space is the black hole. There were a few facts that I get… the first fact a black hole is a place where the gravity well is so great that a gravitational time dilation has occurred. This causes time to stop. This causes an event horizon into which objects can fall or be pulled, but those objects will never reappear. That is the basic definition according to Einstein’s theory of general relativity.

The second fact…

There is no limit to how small or how large a black hole can be. The size and mass of a black hole are directly related. The more massive a black hole is then the more space it takes up. In fact, the Schwarzschild radius (the radius of the event horizon of a black hole) and the mass are directly proportional to one another. Therefore, if one black hole weighs ten times as much as another, its radius is ten times as large.

The third fact…

The nearest black hole is 1,600 light years away. That is about 16 quadrillion kilometers for Earth.

The rest of the facts, you can surf it at...

http://www.universetoday.com/46687/black-hole-facts/